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Connection of spectral pattern of carbohydrate molecular structure to alteration of nutritional properties of coffee by-products after fermentation

  • Samadi (Animal Husbandry Department, Agricultural Faculty, Universitas Syiah Kuala) ;
  • Xin Feng (Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan) ;
  • Luciana Prates (Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan) ;
  • Siti Wajizah (Animal Husbandry Department, Agricultural Faculty, Universitas Syiah Kuala) ;
  • Zulfahrizal (Department of Agricultural Engineering Universitas Syiah Kuala) ;
  • Agus Arip Munawar (Research Centre for Innovation and Feed Technology, Universitas Syiah Kuala) ;
  • Weixian Zhang (Henan University of Animal Husbandry and Economy) ;
  • Peiqiang Yu (Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan)
  • 투고 : 2024.01.11
  • 심사 : 2024.03.28
  • 발행 : 2024.08.01

초록

Objective: The objective of this study was to determine internal structure spectral profile of by-products from coffee processing that were affected by added-microorganism fermentation duration in relation to truly absorbed feed nutrient supply in ruminant system. Methods: The by-products from coffee processing were fermented using commercial fermentation product, consisting of various microorganisms: for 0 (control), 7, 14, 21, and 28 days. In this study, carbohydrate-related spectral profiles of coffee by-products were correlated with their chemical and nutritional properties (chemical composition, total digestible nutrient, bioenergy values, carbohydrate sub-fractions and predicted degradation and digestion parameters as well as milk value of feed). The vibrational spectra of coffee by-products samples after fermentation for 0 (control), 7, 14, 21, and 28 days were determined using a JASCO FT/IR-4200 spectroscopy coupled with accessory of attenuated total reflectance (ATR). The molecular spectral analyses with univariate approach were conducted with the OMNIC 7.3 software. Results: Molecular spectral analysis parameters in fermented and non-fermented by-products from coffee processing included structural carbohydrate, cellulosic compounds, non-structural carbohydrates, lignin compound, CH-bending, structural carbohydrate peak1, structural carbohydrate peak2, structural carbohydrate peak3, hemicellulosic compound, non-structural carbohydrate peak1, non-structural carbohydrate peak2, non-structural carbohydrate peak3. The study results show that added-microorganism fermentation induced chemical and nutritional changes of coffee by-products including carbohydrate chemical composition profiles, bioenergy value, feed milk value, carbohydrate subfractions, estimated degradable and undegradable fractions in the rumen, and intestinal digested nutrient supply in ruminant system. Conclusion: In conclusion, carbohydrate nutrition value changes by added-microorganism fermentation duration were in an agreement with the change of their spectral profile in the coffee by-products. The studies show that the vibrational ATR-FT/IR spectroscopic technique could be applied as a rapid analytical tool to evaluate fermented by-products and connect with truly digestible carbohydrate supply in ruminant system.

키워드

과제정보

This study were supported by the Saskatchewan Agriculture Strategic Research Chair Program, the Natural Sciences and Engineering Research Council of Canada (NSERC-Individual Discovery Grant and NSERC-CRD Grant), the Saskatchewan Pulse Growers (SPG), Prairie Oat Growers Association, SaskMilk etc. Thanks also to DRPM BRIN of Indonesia providing financial support to conduct this study under world class research (WCR) research scheme 2021-2023 (No: 060/E5/PG.02.00.PT/2022).

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